Sandman

Sandman is a game in which the player clicks their mouse to pour sand into a course in order to help a set of auto-moving sleepwalkers overcome obstacles and reach the end of each level. Each level begins with a set of sleep walkers spawning in a particular location and always moving forward, turning themselves around when they encounter a wall. The player's goal is to help as many sleepwalkers as possible reach a finish location in a particular level.

The auto-moving nature of the sleepwalkers is very similar to that of Lemmings. As the levels progress, the obstacles and challenges that the player must overcome to help all of the sleepwalkers to safety increases in difficulty.